Tom asks:
> I moved me and my trusty 918 to a new office over the weekend. But when I
> tried to bring everything up, the C6394 external SCSI drive would not power
> up. After much futzing around, it finally powered up and seems to be
> operating just fine, but I want to replace it soon as possible.
>
> What are my options? Can I buy any external SCSI? Does it have to be one
> specifically for the HP3000?
I don't recognize what kind of device a C6394 drive is, but the basic answer
to your question is that SCSI is SCSI (more or less) and virtually any
single-ended SCSI drive should work on the HP3000.
We've had a number of the little 4GB internally mounted drives in our HP3000s
fail, as they are notorious for doing. As they fail, I simply buy external
SCSI drives, primarily from APS (http://www.apstech.com), with little regard
for the manufacturer any longer. Once plugged in and configured into the
system, they seem to work flawlessly.
My first attempt at doing this was several years ago, using an externally
mounted Quantum Fireball SCSI disc that I took off of a Macintosh that I was
no longer using. I plugged it into the HP3000's SCSI port just to see if our
5.5 918 would recognize it. Voila, it did.
Below is a part of the SYSINFO output that MPE/iX 5.5 generated. In versions
6.0 and higher, the general host IO map has been suppressed in SYSINFO, which
is a real shame. Nonetheless, in this 5.5 image, you can see that Mac drive
in LDEV 2's slot as MPE came to recognize it:
IOMAP GENERAL HOST MAP
------------------------------------------------------------------------------
CONFIRM MODE IS ON TIMEOUT IS 5 SECOND(S) SUPPRESS DTC DEVICES IS ON
------------------------------------------------------------------------------
Bus Converter(56)
Device Adapter(56/52) --- A1703-60003-SCSI SCSI
Device Adapter(56/52.0) --- PSEUDO
Device(56/52.0.0) [ ldev 7 HPC1503B TAPE]
***DEV CONFIG MISMATCH, ACTUAL ID = HPC1533A***
Device Adapter(56/52.2) --- PSEUDO ***NOT PRESENT***
Device(56/52.2.0) [ ldev 11 HPA1999A DISK ***NOT PRESENT***]
Device Adapter(56/52.3) --- PSEUDO ***NOT PRESENT***
Device(56/52.3.0) [ ldev 4 HPC2247M1 DISK ***NOT PRESENT***]
Device Adapter(56/52.4) --- PSEUDO ***NOT PRESENT***
Device(56/52.4.0) [ ldev 3 HPC2247M1 DISK ***NOT PRESENT***]
Device Adapter(56/52.5) --- PSEUDO
Device(56/52.5.0) [ ldev 2 HPC2247M1 DISK]
***DEV CONFIG MISMATCH, ACTUAL ID = HPFIREBALL_TM3200S***
Device Adapter(56/52.6) --- PSEUDO
Device(56/52.6.0) [ ldev 1 HPC2247M1 DISK]
***DEV CONFIG MISMATCH, ACTUAL ID = ST34572N***
Device Adapter(56/52.8) --- PSEUDO ***NOT PRESENT***
Device(56/52.8.0) [ ldev 6 HP2567B LINE PRINTER ***NOT PRESENT***]
Device Adapter(56/52.9) --- PSEUDO ***NOT PRESENT***
Device(56/52.9.0) [ ldev 10 HPC1503B TAPE ***NOT PRESENT***]
Local Area Network(56/56) A1703-60003-CONSOLE/LAN CONSOLE/LAN ->
***LAN DEV'S OUTPUT SUPPRESSED***
------------------------------------------------------------------------------
I don't have access to any easy metric telling me what my 6.0 and 6.5
machines are calling the external SCSI disc drives, but they also seem to
work equally well. In fact, there's a picture up on the web of our 6.0 918
with a 18GB LaCie drive on it that I purchased for just $200 when the HP 4GB
drive failed. The image is at:
http://aics-research.com/planb.html
Look at the middle image, just above the section labeled "Hardware
Maintenance".
Wirt Atmar
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